Solve using matrices.  x + y + z - w = 14  x + y - z + w = -22x + 3y + z + w = 20-x + y + 2z + 3w = 8

A. (w, x, y, z) = (4, 2, 6, -2)
B. (w, x, y, z) = (-2, 2, 4, 6)
C. (w, x, y, z) = (2, 4, -2, 6)
D. (w, x, y, z) = (0, 2, 0, 4)


Answer: B

Mathematics

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